A Day of Demons

Going on a mission after becoming a demon slayer. Tanjiro meets Giyuu Tomioka again. To a surprise Giyuu notices nezuko and how she changed. Giyuu decides to join with Tanjiro on the mission. They meet Zenitsu and Inosuke. Tanjirio's kindness spread everywhere to the point that Giyuu can't take it anymore. And starts to hide his feelings for Tanjiro.
How will this story end-